Whether you have an ancient, but excellent pair of speakers sitting around your house, or you've scored a sweet set of vintage speakers from the thrift store, chances are they need need a little love to get them sounding great. In a lot of old speakers, the foam lining is the first to go, which is why Instructables user andrea biffi shows you how to re-foam them.

In old speakers, the foam lining will crack open and that means the speaker doesn't emit that much sound. For about $15 worth of materials you can fix this with foam or plastic. The process requires you to cut your speaker apart and do some gluing, so it's not for the faint of heart, but if it's already destroyed you don't have anything to lose. With an afternoon you should be able to turn that cheap pair of busted vintage speakers into a kickass sounding system on the cheap.